Project

i2c-lcd

0.0
Low commit activity in last 3 years
Ruby driver for 2004/1602 LCD display with I2C adapter
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 Project Readme

LCD I2C driver (1602/2004/..)

This is a Ruby driver for the 2004A/1602 LCD display with I2C adapter (tested with PCF8574T), forked from i2c-ss1602.

The original i2c-ss1602 was partially ported from raspi-gpio.

Installation

Add this line to your application's Gemfile:

gem 'i2c-lcd'

And then execute:

$ bundle

Or install it yourself as:

$ gem install i2c-lcd

Usage

require 'i2c/drivers/lcd'
display = I2C::Drivers::LCD::Display.new('/dev/i2c-1', 0x27, rows=20, cols=4)
display.clear
display.text('Hello', 0)
display.text('World', 1)
display.text('Line3', 2)
display.text('Line4', 3)

'rows' and 'cols' options are optional. The default value is 20 and 4.